Home / 93,418.38-128,920.09-50,979.64

Finding the Fourth Proportional to 93,418.38, 128,920.09 and 50,979.64

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Solution

The fourth proportional to 93,418.38, 128,920.09 and 50,979.64 is: 70,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,418.38 : 128,920.09 = 50,979.64 : x
  2. Step 2: Convert to fraction form
    93,418.38/128,920.09 = 50,979.64/x
  3. Step 3: Cross multiply
    93,418.38x = 128,920.09 × 50,979.64
  4. Step 4: Simplify right side
    93,418.38x = 6,572,299,840.69
  5. Step 5: Solve for x
    x = 6,572,299,840.69/93,418.38
  6. Step 6: Final answer
    x = 70,353.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.